<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<style>
    body, html {
        height: 100%;
        margin: 0;
    }
    .container {
        display: flex;
        justify-content: center; /* 水平居中 */
        align-items: center; /* 垂直居中 */
        height: 100%;
    }
    .centered-div {
        width: 200px;
        height: 100px;
    }
</style>
</head>
<body>
<div class="container">
    <div class="centered-div">
        <a href="tel:15840257718">挪车电话：15840257718</a>
    </div>
</div>
</body>
</html>